Answer:
6mm
Step-by-step explanation:
B is x.
15 IS HYPOTENUS.
Therefore b is15-9
 
        
                    
             
        
        
        
Answer:
The larger angle is 144 degrees and the smaller angle is 36 degrees
Step-by-step explanation:
Because this is a  supplementary angle you have to find out what x is to solve  this equation 
Because 2.4x and 9.6x are like terms we add them 
So now to find x we divide 180 by 12 to get 15   
 
We replace the x with 15 
We add 36 and 144 which equals 180 
 
        
                    
             
        
        
        
Answer:she has 20 pennies because
Step-by-step explanation:80 divide by 4 = 20
 
        
             
        
        
        
Answer is D if you subtract the two numbers 
        
             
        
        
        
Answer:
51
Step-by-step explanation: